物理化学学报 >> 2011, Vol. 27 >> Issue (09): 2095-2100.doi: 10.3866/PKU.WHXB20110906

理论与计算化学 上一篇    下一篇

Yb3+敏化宽波带掺Er3+氟磷酸盐玻璃的发光性质及Judd-Ofelt理论研究

郑涛1, 李攀1, 肖生春1, 王丹1, 吕景文1, 门志伟2   

  1. 1. 长春理工大学材料科学与工程学院, 长春 130022;
    2. 吉林大学物理学院, 长春 130012
  • 收稿日期:2011-03-03 修回日期:2011-06-01 发布日期:2011-08-26
  • 通讯作者: 吕景文 E-mail:ljwcc@126.com
  • 基金资助:

    国家自然科学基金(11075026)资助项目

Luminance Properties and Judd-Ofelt Theory Study of Yb3+ Sensitization Wideband Er3+ Doped Fluorphosphate Glass

ZHENG Tao1, LI Pan1, XIAO Sheng-Chun1, WANG Dan1, Lü Jing-Wen1, MEN Zhi-Wei2   

  1. 1. Department of Material Science and Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China;
    2. Department of Physics, Jilin University, Changchun 130012, P. R. China
  • Received:2011-03-03 Revised:2011-06-01 Published:2011-08-26
  • Contact: Lü Jing-Wen E-mail:ljwcc@126.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (11075026).

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摘要： 采用高温熔融法制备了一种新的Er3+/Yb3+共掺氟磷酸盐玻璃, 测试和分析了其密度、吸收光谱以及荧光光谱, 讨论了Er3+离子和Yb3+离子对光谱性质的影响. 根据Judd-Ofelt 理论计算了玻璃中Er3+离子的强度参数Ωt(t=2, 4, 6), 分别为Ω2=4.36×10-20 cm2, Ω4=1.35×10-20 cm2, Ω6=0.79×10-20 cm2, 以及Er3+离子4I13/2能级荧光寿命τm=8.26 ms . 主发射峰1.53 μm处半高宽(FWHM)为68 nm. 根据McCumber理论计算了Er3+的受激发射截面σe=8.5×10-21 cm2. 比较了不同玻璃基质中Er3+离子的光谱特性, 结果表明: Er3+/Yb3+双掺氟磷酸盐玻璃在1.53μm附近具有较宽的半高宽和较大的受激发射截面, 是一种高增益掺铒光纤放大器的理想介质材料.

关键词: 氟磷酸盐玻璃, McCumber理论, Judd-Ofelt 理论, 荧光光谱, 荧光寿命

Abstract: A new Er3+/Yb3+-codoped fluorphosphate glass was prepared by high temperature melting. Its density, absorption spectra, and fluorescence spectra were measured and investigated. The effect of Er3+ and Yb3+ concentrations on the spectroscopic properties of the glass sample are discussed. A Judd-Ofelt theory analysis on the absorption spectra was performed. The oscillator strengths were Ωt (t=2, 4, 6 ), Ω2= 4.36×10-20 cm2, Ω4=1.35×10-20 cm2, and Ω6=0.79×10-20 cm2. The lifetime (τm) of the 4I13/2 level for the Er3+ ions was 8.26 ms and the full width at half maximum (FWHM) of the main emission peak was 68 nm at 1.53 μm. The large stimulated emission cross-section (σe=8.5×10-21 cm2) of the Er3+ was calculated using McCumber theory. The spectroscopic properties of the Er3+ ion were compared among different glasses. The FWHM and σe of Er3+/Yb3+-codoped fluorphosphate glass were found to be larger than those of other glass hosts, which indicates that this glass may be a potentially useful candidate material host for a high-gain erbium-doped fiber amplifier.

Key words: Fluorphosphate glass, McCumber theory, Judd-Ofelt theory, Fluorescence spectrum, Fluorescence lifetime